# This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
#
+from collections import namedtuple
+
from django.db import models
from django.db.models import permalink, Q
+import django.dispatch
+from django.core.cache import cache
+from django.core.files.storage import DefaultStorage
from django.utils.translation import ugettext_lazy as _
from django.contrib.auth.models import User
-from django.core.files import File
from django.template.loader import render_to_string
+from django.utils.datastructures import SortedDict
from django.utils.safestring import mark_safe
from django.utils.translation import get_language
from django.core.urlresolvers import reverse
from newtagging.models import TagBase, tags_updated
from newtagging import managers
-from catalogue.fields import JSONField
-
-from librarian import dcparser, html, epub, NoDublinCore
-from mutagen import id3
-from slughifi import slughifi
+from catalogue.fields import JSONField, OverwritingFileField
+from catalogue.utils import create_zip
+from catalogue.tasks import touch_tag
+from shutil import copy
+from glob import glob
+import re
+from os import path
TAG_CATEGORIES = (
('book', _('book')),
)
-MEDIA_FORMATS = (
- ('odt', _('ODT file')),
- ('mp3', _('MP3 file')),
- ('ogg', _('OGG file')),
- ('daisy', _('DAISY file')),
-)
+# not quite, but Django wants you to set a timeout
+CACHE_FOREVER = 2419200 # 28 days
+
class TagSubcategoryManager(models.Manager):
def __init__(self, subcategory):
category = models.CharField(_('category'), max_length=50, blank=False, null=False,
db_index=True, choices=TAG_CATEGORIES)
description = models.TextField(_('description'), blank=True)
- main_page = models.BooleanField(_('main page'), default=False, db_index=True, help_text=_('Show tag on main page'))
user = models.ForeignKey(User, blank=True, null=True)
book_count = models.IntegerField(_('book count'), blank=True, null=True)
gazeta_link = models.CharField(blank=True, max_length=240)
wiki_link = models.CharField(blank=True, max_length=240)
+ created_at = models.DateTimeField(_('creation date'), auto_now_add=True, db_index=True)
+ changed_at = models.DateTimeField(_('creation date'), auto_now=True, db_index=True)
+
+ class UrlDeprecationWarning(DeprecationWarning):
+ pass
+
categories_rev = {
'autor': 'author',
'epoka': 'epoch',
has_description.boolean = True
def get_count(self):
- """ returns global book count for book tags, fragment count for themes """
-
- if self.book_count is None:
- if self.category == 'book':
- # never used
- objects = Book.objects.none()
- elif self.category == 'theme':
- objects = Fragment.tagged.with_all((self,))
- else:
- objects = Book.tagged.with_all((self,)).order_by()
- if self.category != 'set':
- # eliminate descendants
- l_tags = Tag.objects.filter(slug__in=[book.book_tag_slug() for book in objects])
- descendants_keys = [book.pk for book in Book.tagged.with_any(l_tags)]
- if descendants_keys:
- objects = objects.exclude(pk__in=descendants_keys)
- self.book_count = objects.count()
- self.save()
- return self.book_count
+ """Returns global book count for book tags, fragment count for themes."""
+
+ if self.category == 'book':
+ # never used
+ objects = Book.objects.none()
+ elif self.category == 'theme':
+ objects = Fragment.tagged.with_all((self,))
+ else:
+ objects = Book.tagged.with_all((self,)).order_by()
+ if self.category != 'set':
+ # eliminate descendants
+ l_tags = Tag.objects.filter(slug__in=[book.book_tag_slug() for book in objects])
+ descendants_keys = [book.pk for book in Book.tagged.with_any(l_tags)]
+ if descendants_keys:
+ objects = objects.exclude(pk__in=descendants_keys)
+ return objects.count()
@staticmethod
def get_tag_list(tags):
real_tags = []
ambiguous_slugs = []
category = None
+ deprecated = False
tags_splitted = tags.split('/')
- for index, name in enumerate(tags_splitted):
- if name in Tag.categories_rev:
+ for name in tags_splitted:
+ if category:
+ real_tags.append(Tag.objects.get(slug=name, category=category))
+ category = None
+ elif name in Tag.categories_rev:
category = Tag.categories_rev[name]
else:
- if category:
- real_tags.append(Tag.objects.get(slug=name, category=category))
- category = None
- else:
- try:
- real_tags.append(Tag.objects.exclude(category='book').get(slug=name))
- except Tag.MultipleObjectsReturned, e:
- ambiguous_slugs.append(name)
+ try:
+ real_tags.append(Tag.objects.exclude(category='book').get(slug=name))
+ deprecated = True
+ except Tag.MultipleObjectsReturned, e:
+ ambiguous_slugs.append(name)
if category:
# something strange left off
e.tags = real_tags
e.ambiguous_slugs = ambiguous_slugs
raise e
- else:
- return real_tags
+ if deprecated:
+ e = Tag.UrlDeprecationWarning()
+ e.tags = real_tags
+ raise e
+ return real_tags
else:
return TagBase.get_tag_list(tags)
def url_chunk(self):
return '/'.join((Tag.categories_dict[self.category], self.slug))
+ @staticmethod
+ def tags_from_info(info):
+ from slughifi import slughifi
+ from sortify import sortify
+ meta_tags = []
+ categories = (('kinds', 'kind'), ('genres', 'genre'), ('authors', 'author'), ('epochs', 'epoch'))
+ for field_name, category in categories:
+ try:
+ tag_names = getattr(info, field_name)
+ except:
+ try:
+ tag_names = [getattr(info, category)]
+ except:
+ # For instance, Pictures do not have 'genre' field.
+ continue
+ for tag_name in tag_names:
+ tag_sort_key = tag_name
+ if category == 'author':
+ tag_sort_key = tag_name.last_name
+ tag_name = tag_name.readable()
+ tag, created = Tag.objects.get_or_create(slug=slughifi(tag_name), category=category)
+ if created:
+ tag.name = tag_name
+ tag.sort_key = sortify(tag_sort_key.lower())
+ tag.save()
+ meta_tags.append(tag)
+ return meta_tags
+
+
+
+def get_dynamic_path(media, filename, ext=None, maxlen=100):
+ from slughifi import slughifi
+
+ # how to put related book's slug here?
+ if not ext:
+ # BookMedia case
+ ext = media.formats[media.type].ext
+ if media is None or not media.name:
+ name = slughifi(filename.split(".")[0])
+ else:
+ name = slughifi(media.name)
+ return 'book/%s/%s.%s' % (ext, name[:maxlen-len('book/%s/.%s' % (ext, ext))-4], ext)
+
# TODO: why is this hard-coded ?
def book_upload_path(ext=None, maxlen=100):
- def get_dynamic_path(media, filename, ext=ext):
- # how to put related book's slug here?
- if not ext:
- ext = media.type
- if not media.name:
- name = slughifi(filename.split(".")[0])
- else:
- name = slughifi(media.name)
- return 'lektura/%s.%s' % (name[:(maxlen-len('lektura/.%s' % ext))], ext)
- return get_dynamic_path
+ return lambda *args: get_dynamic_path(*args, ext=ext, maxlen=maxlen)
+
+
+def get_customized_pdf_path(book, customizations):
+ """
+ Returns a MEDIA_ROOT relative path for a customized pdf. The name will contain a hash of customization options.
+ """
+ customizations.sort()
+ h = hash(tuple(customizations))
+
+ pdf_name = '%s-custom-%s' % (book.fileid(), h)
+ pdf_file = get_dynamic_path(None, pdf_name, ext='pdf')
+
+ return pdf_file
+
+
+def get_existing_customized_pdf(book):
+ """
+ Returns a list of paths to generated customized pdf of a book
+ """
+ pdf_glob = '%s-custom-' % (book.fileid(),)
+ pdf_glob = get_dynamic_path(None, pdf_glob, ext='pdf')
+ pdf_glob = re.sub(r"[.]([a-z0-9]+)$", "*.\\1", pdf_glob)
+ return glob(path.join(settings.MEDIA_ROOT, pdf_glob))
class BookMedia(models.Model):
- type = models.CharField(_('type'), choices=MEDIA_FORMATS, max_length="100")
- name = models.CharField(_('name'), max_length="100", blank=True)
- file = models.FileField(_('file'), upload_to=book_upload_path(), blank=True)
+ FileFormat = namedtuple("FileFormat", "name ext")
+ formats = SortedDict([
+ ('mp3', FileFormat(name='MP3', ext='mp3')),
+ ('ogg', FileFormat(name='Ogg Vorbis', ext='ogg')),
+ ('daisy', FileFormat(name='DAISY', ext='daisy.zip')),
+ ])
+ format_choices = [(k, _('%s file') % t.name)
+ for k, t in formats.items()]
+
+ type = models.CharField(_('type'), choices=format_choices, max_length="100")
+ name = models.CharField(_('name'), max_length="100")
+ file = OverwritingFileField(_('file'), upload_to=book_upload_path())
uploaded_at = models.DateTimeField(_('creation date'), auto_now_add=True, editable=False)
- extra_info = JSONField(_('extra information'), default='{}')
+ extra_info = JSONField(_('extra information'), default='{}', editable=False)
+ book = models.ForeignKey('Book', related_name='media')
+ source_sha1 = models.CharField(null=True, blank=True, max_length=40, editable=False)
def __unicode__(self):
return "%s (%s)" % (self.name, self.file.name.split("/")[-1])
verbose_name = _('book media')
verbose_name_plural = _('book media')
- def save(self, force_insert=False, force_update=False, **kwargs):
- media = super(BookMedia, self).save(force_insert, force_update, **kwargs)
- if self.type == 'mp3':
- file = self.file
- extra_info = self.get_extra_info_value()
- extra_info.update(self.get_mp3_info())
- self.set_extra_info_value(extra_info)
- media = super(BookMedia, self).save(force_insert, force_update, **kwargs)
- return media
-
- def get_mp3_info(self):
- """Retrieves artist and director names from audio ID3 tags."""
+ def save(self, *args, **kwargs):
+ from slughifi import slughifi
+ from catalogue.utils import ExistingFile, remove_zip
+
try:
- audio = id3.ID3(self.file.path)
- artist_name = ', '.join(', '.join(tag.text) for tag in audio.getall('TPE1'))
- director_name = ', '.join(', '.join(tag.text) for tag in audio.getall('TPE3'))
- except:
- artist_name = director_name = ''
- return {'artist_name': artist_name, 'director_name': director_name}
+ old = BookMedia.objects.get(pk=self.pk)
+ except BookMedia.DoesNotExist, e:
+ pass
+ else:
+ # if name changed, change the file name, too
+ if slughifi(self.name) != slughifi(old.name):
+ self.file.save(None, ExistingFile(self.file.path), save=False, leave=True)
+
+ super(BookMedia, self).save(*args, **kwargs)
+
+ # remove the zip package for book with modified media
+ remove_zip(self.book.fileid())
+
+ extra_info = self.get_extra_info_value()
+ extra_info.update(self.read_meta())
+ self.set_extra_info_value(extra_info)
+ self.source_sha1 = self.read_source_sha1(self.file.path, self.type)
+ return super(BookMedia, self).save(*args, **kwargs)
+
+ def read_meta(self):
+ """
+ Reads some metadata from the audiobook.
+ """
+ import mutagen
+ from mutagen import id3
+
+ artist_name = director_name = project = funded_by = ''
+ if self.type == 'mp3':
+ try:
+ audio = id3.ID3(self.file.path)
+ artist_name = ', '.join(', '.join(tag.text) for tag in audio.getall('TPE1'))
+ director_name = ', '.join(', '.join(tag.text) for tag in audio.getall('TPE3'))
+ project = ", ".join([t.data for t in audio.getall('PRIV')
+ if t.owner=='wolnelektury.pl?project'])
+ funded_by = ", ".join([t.data for t in audio.getall('PRIV')
+ if t.owner=='wolnelektury.pl?funded_by'])
+ except:
+ pass
+ elif self.type == 'ogg':
+ try:
+ audio = mutagen.File(self.file.path)
+ artist_name = ', '.join(audio.get('artist', []))
+ director_name = ', '.join(audio.get('conductor', []))
+ project = ", ".join(audio.get('project', []))
+ funded_by = ", ".join(audio.get('funded_by', []))
+ except:
+ pass
+ else:
+ return {}
+ return {'artist_name': artist_name, 'director_name': director_name,
+ 'project': project, 'funded_by': funded_by}
+
+ @staticmethod
+ def read_source_sha1(filepath, filetype):
+ """
+ Reads source file SHA1 from audiobok metadata.
+ """
+ import mutagen
+ from mutagen import id3
+
+ if filetype == 'mp3':
+ try:
+ audio = id3.ID3(filepath)
+ return [t.data for t in audio.getall('PRIV')
+ if t.owner=='wolnelektury.pl?flac_sha1'][0]
+ except:
+ return None
+ elif filetype == 'ogg':
+ try:
+ audio = mutagen.File(filepath)
+ return audio.get('flac_sha1', [None])[0]
+ except:
+ return None
+ else:
+ return None
class Book(models.Model):
title = models.CharField(_('title'), max_length=120)
- slug = models.SlugField(_('slug'), max_length=120, unique=True, db_index=True)
+ sort_key = models.CharField(_('sort key'), max_length=120, db_index=True, editable=False)
+ slug = models.SlugField(_('slug'), max_length=120, db_index=True)
+ language = models.CharField(_('language code'), max_length=3, db_index=True,
+ default=settings.CATALOGUE_DEFAULT_LANGUAGE)
description = models.TextField(_('description'), blank=True)
- created_at = models.DateTimeField(_('creation date'), auto_now_add=True)
- _short_html = models.TextField(_('short HTML'), editable=False)
+ created_at = models.DateTimeField(_('creation date'), auto_now_add=True, db_index=True)
+ changed_at = models.DateTimeField(_('creation date'), auto_now=True, db_index=True)
parent_number = models.IntegerField(_('parent number'), default=0)
- extra_info = JSONField(_('extra information'))
+ extra_info = JSONField(_('extra information'), default='{}')
gazeta_link = models.CharField(blank=True, max_length=240)
wiki_link = models.CharField(blank=True, max_length=240)
# files generated during publication
- xml_file = models.FileField(_('XML file'), upload_to=book_upload_path('xml'), blank=True)
- html_file = models.FileField(_('HTML file'), upload_to=book_upload_path('html'), blank=True)
- pdf_file = models.FileField(_('PDF file'), upload_to=book_upload_path('pdf'), blank=True)
- epub_file = models.FileField(_('EPUB file'), upload_to=book_upload_path('epub'), blank=True)
- txt_file = models.FileField(_('TXT file'), upload_to=book_upload_path('txt'), blank=True)
- # other files
- medias = models.ManyToManyField(BookMedia, blank=True)
-
+
+ cover = models.FileField(_('cover'), upload_to=book_upload_path('png'),
+ null=True, blank=True)
+ ebook_formats = ['pdf', 'epub', 'mobi', 'txt']
+ formats = ebook_formats + ['html', 'xml']
+
parent = models.ForeignKey('self', blank=True, null=True, related_name='children')
objects = models.Manager()
tagged = managers.ModelTaggedItemManager(Tag)
tags = managers.TagDescriptor(Tag)
- _tag_counter = JSONField(null=True, editable=False)
- _theme_counter = JSONField(null=True, editable=False)
+ html_built = django.dispatch.Signal()
+ published = django.dispatch.Signal()
+
+ URLID_RE = r'[a-z0-9-]+(?:/[a-z]{3})?'
+ FILEID_RE = r'[a-z0-9-]+(?:_[a-z]{3})?'
class AlreadyExists(Exception):
pass
class Meta:
- ordering = ('title',)
+ unique_together = [['slug', 'language']]
+ ordering = ('sort_key',)
verbose_name = _('book')
verbose_name_plural = _('books')
def __unicode__(self):
return self.title
+ def urlid(self, sep='/'):
+ stem = self.slug
+ if self.language != settings.CATALOGUE_DEFAULT_LANGUAGE:
+ stem += sep + self.language
+ return stem
+
+ def fileid(self):
+ return self.urlid('_')
+
+ @staticmethod
+ def split_urlid(urlid, sep='/', default_lang=settings.CATALOGUE_DEFAULT_LANGUAGE):
+ """Splits a URL book id into slug and language code.
+
+ Returns a dictionary usable i.e. for object lookup, or None.
+
+ >>> Book.split_urlid("a-slug/pol", default_lang="eng")
+ {'slug': 'a-slug', 'language': 'pol'}
+ >>> Book.split_urlid("a-slug", default_lang="eng")
+ {'slug': 'a-slug', 'language': 'eng'}
+ >>> Book.split_urlid("a-slug_pol", "_", default_lang="eng")
+ {'slug': 'a-slug', 'language': 'pol'}
+ >>> Book.split_urlid("a-slug/eng", default_lang="eng")
+
+ """
+ parts = urlid.rsplit(sep, 1)
+ if len(parts) == 2:
+ if parts[1] == default_lang:
+ return None
+ return {'slug': parts[0], 'language': parts[1]}
+ else:
+ return {'slug': urlid, 'language': default_lang}
+
+ @classmethod
+ def split_fileid(cls, fileid):
+ return cls.split_urlid(fileid, '_')
+
def save(self, force_insert=False, force_update=False, reset_short_html=True, **kwargs):
+ from sortify import sortify
+
+ self.sort_key = sortify(self.title)
+
+ ret = super(Book, self).save(force_insert, force_update)
+
if reset_short_html:
- # Reset _short_html during save
- update = {}
- for key in filter(lambda x: x.startswith('_short_html'), self.__dict__):
- update[key] = ''
- self.__setattr__(key, '')
- # Fragment.short_html relies on book's tags, so reset it here too
- self.fragments.all().update(**update)
+ self.reset_short_html()
- return super(Book, self).save(force_insert, force_update)
+ return ret
@permalink
def get_absolute_url(self):
- return ('catalogue.views.book_detail', [self.slug])
+ return ('catalogue.views.book_detail', [self.urlid()])
@property
def name(self):
return self.title
def book_tag_slug(self):
- return ('l-' + self.slug)[:120]
+ stem = 'l-' + self.slug
+ if self.language != settings.CATALOGUE_DEFAULT_LANGUAGE:
+ return stem[:116] + ' ' + self.language
+ else:
+ return stem[:120]
def book_tag(self):
slug = self.book_tag_slug()
return book_tag
def has_media(self, type):
- if type == 'xml':
- if self.xml_file:
- return True
- else:
- return False
- elif type == 'html':
- if self.html_file:
- return True
- else:
- return False
- elif type == 'txt':
- if self.txt_file:
- return True
- else:
- return False
- elif type == 'pdf':
- if self.pdf_file:
- return True
- else:
- return False
- elif type == 'epub':
- if self.epub_file:
- return True
- else:
- return False
+ if type in Book.formats:
+ return bool(getattr(self, "%s_file" % type))
else:
- if self.medias.filter(book=self, type=type).count() > 0:
- return True
- else:
- return False
+ return self.media.filter(type=type).exists()
def get_media(self, type):
if self.has_media(type):
- if type == "xml":
- return self.xml_file
- elif type == "html":
- return self.html_file
- elif type == "epub":
- return self.epub_file
- elif type == "txt":
- return self.txt_file
- elif type == "pdf":
- return self.pdf_file
+ if type in Book.formats:
+ return getattr(self, "%s_file" % type)
else:
- return self.medias.filter(book=self, type=type)
+ return self.media.filter(type=type)
else:
return None
def get_daisy(self):
return self.get_media("daisy")
+ def reset_short_html(self):
+ if self.id is None:
+ return
+
+ cache_key = "Book.short_html/%d/%s"
+ for lang, langname in settings.LANGUAGES:
+ cache.delete(cache_key % (self.id, lang))
+ # Fragment.short_html relies on book's tags, so reset it here too
+ for fragm in self.fragments.all():
+ fragm.reset_short_html()
+
def short_html(self):
- key = '_short_html_%s' % get_language()
- short_html = getattr(self, key)
+ if self.id:
+ cache_key = "Book.short_html/%d/%s" % (self.id, get_language())
+ short_html = cache.get(cache_key)
+ else:
+ short_html = None
- if short_html and len(short_html):
+ if short_html is not None:
return mark_safe(short_html)
else:
tags = self.tags.filter(~Q(category__in=('set', 'theme', 'book')))
tags = [mark_safe(u'<a href="%s">%s</a>' % (tag.get_absolute_url(), tag.name)) for tag in tags]
formats = []
- # files generated during publication
+ # files generated during publication
if self.has_media("html"):
- formats.append(u'<a href="%s">%s</a>' % (reverse('book_text', kwargs={'slug': self.slug}), _('Read online')))
- if self.has_media("pdf"):
- formats.append(u'<a href="%s">PDF</a>' % self.get_media('pdf').url)
- if self.root_ancestor.has_media("epub"):
- formats.append(u'<a href="%s">EPUB</a>' % self.root_ancestor.get_media('epub').url)
- if self.has_media("txt"):
- formats.append(u'<a href="%s">TXT</a>' % self.get_media('txt').url)
+ formats.append(u'<a href="%s">%s</a>' % (reverse('book_text', args=[self.fileid()]), _('Read online')))
+ for ebook_format in self.ebook_formats:
+ if self.has_media(ebook_format):
+ formats.append(u'<a href="%s">%s</a>' % (
+ self.get_media(ebook_format).url,
+ ebook_format.upper()
+ ))
# other files
- for m in self.medias.order_by('type'):
+ for m in self.media.order_by('type'):
formats.append(u'<a href="%s">%s</a>' % (m.file.url, m.type.upper()))
formats = [mark_safe(format) for format in formats]
- setattr(self, key, unicode(render_to_string('catalogue/book_short.html',
- {'book': self, 'tags': tags, 'formats': formats})))
- self.save(reset_short_html=False)
- return mark_safe(getattr(self, key))
+ short_html = unicode(render_to_string('catalogue/book_short.html',
+ {'book': self, 'tags': tags, 'formats': formats}))
+
+ if self.id:
+ cache.set(cache_key, short_html, CACHE_FOREVER)
+ return mark_safe(short_html)
+ def mini_box(self):
+ if self.id:
+ cache_key = "Book.mini_boxs/%d" % (self.id, )
+ short_html = cache.get(cache_key)
+ else:
+ short_html = None
- @property
- def root_ancestor(self):
- """ returns the oldest ancestor """
+ if short_html is None:
+ authors = self.tags.filter(category='author')
- if not hasattr(self, '_root_ancestor'):
- book = self
- while book.parent:
- book = book.parent
- self._root_ancestor = book
- return self._root_ancestor
+ short_html = unicode(render_to_string('catalogue/book_mini_box.html',
+ {'book': self, 'authors': authors, 'STATIC_URL': settings.STATIC_URL}))
+ if self.id:
+ cache.set(cache_key, short_html, CACHE_FOREVER)
+ return mark_safe(short_html)
def has_description(self):
return len(self.description) > 0
has_description.boolean = True
# ugly ugly ugly
- def has_pdf_file(self):
- return bool(self.pdf_file)
- has_pdf_file.short_description = 'PDF'
- has_pdf_file.boolean = True
-
- def has_epub_file(self):
- return bool(self.epub_file)
- has_epub_file.short_description = 'EPUB'
- has_epub_file.boolean = True
-
- def has_txt_file(self):
- return bool(self.txt_file)
- has_txt_file.short_description = 'HTML'
- has_txt_file.boolean = True
-
- def has_html_file(self):
- return bool(self.html_file)
- has_html_file.short_description = 'HTML'
- has_html_file.boolean = True
-
- def has_odt_file(self):
- return bool(self.has_media("odt"))
- has_odt_file.short_description = 'ODT'
- has_odt_file.boolean = True
-
def has_mp3_file(self):
return bool(self.has_media("mp3"))
has_mp3_file.short_description = 'MP3'
return bool(self.has_media("ogg"))
has_ogg_file.short_description = 'OGG'
has_ogg_file.boolean = True
-
+
def has_daisy_file(self):
return bool(self.has_media("daisy"))
has_daisy_file.short_description = 'DAISY'
- has_daisy_file.boolean = True
-
- def build_epub(self, remove_descendants=True):
- """ (Re)builds the epub file.
- If book has a parent, does nothing.
- Unless remove_descendants is False, descendants' epubs are removed.
- """
-
+ has_daisy_file.boolean = True
+
+ def wldocument(self, parse_dublincore=True):
+ from catalogue.utils import ORMDocProvider
+ from librarian.parser import WLDocument
+
+ return WLDocument.from_file(self.xml_file.path,
+ provider=ORMDocProvider(self),
+ parse_dublincore=parse_dublincore)
+
+ def build_cover(self, book_info=None):
+ """(Re)builds the cover image."""
from StringIO import StringIO
- from hashlib import sha1
from django.core.files.base import ContentFile
- from librarian import DocProvider
+ from librarian.cover import WLCover
- class BookImportDocProvider(DocProvider):
- """ used for joined EPUBs """
+ if book_info is None:
+ book_info = self.wldocument().book_info
- def __init__(self, book):
- self.book = book
+ cover = WLCover(book_info).image()
+ imgstr = StringIO()
+ cover.save(imgstr, 'png')
+ self.cover.save(None, ContentFile(imgstr.getvalue()))
- def by_slug(self, slug):
- if slug == self.book.slug:
- return self.book.xml_file
- else:
- return Book.objects.get(slug=slug).xml_file
+ def build_pdf(self, customizations=None, file_name=None):
+ """ (Re)builds the pdf file.
+ customizations - customizations which are passed to LaTeX class file.
+ file_name - save the pdf file under a different name and DO NOT save it in db.
+ """
+ from os import unlink
+ from django.core.files import File
+ from catalogue.utils import remove_zip
- if self.parent:
- # don't need an epub
- return
+ pdf = self.wldocument().as_pdf(customizations=customizations)
- epub_file = StringIO()
- try:
- epub.transform(BookImportDocProvider(self), self.slug, output_file=epub_file)
- self.epub_file.save('%s.epub' % self.slug, ContentFile(epub_file.getvalue()))
- FileRecord(slug=self.slug, type='epub', sha1=sha1(epub_file.getvalue()).hexdigest()).save()
- except NoDublinCore:
- pass
+ if file_name is None:
+ # we'd like to be sure not to overwrite changes happening while
+ # (timely) pdf generation is taking place (async celery scenario)
+ current_self = Book.objects.get(id=self.id)
+ current_self.pdf_file.save('%s.pdf' % self.fileid(),
+ File(open(pdf.get_filename())))
+ self.pdf_file = current_self.pdf_file
- book_descendants = list(self.children.all())
- while len(book_descendants) > 0:
- child_book = book_descendants.pop(0)
- if remove_descendants and child_book.has_epub_file():
- child_book.epub_file.delete()
- # save anyway, to refresh short_html
- child_book.save()
- book_descendants += list(child_book.children.all())
+ # remove cached downloadables
+ remove_zip(settings.ALL_PDF_ZIP)
+
+ for customized_pdf in get_existing_customized_pdf(self):
+ unlink(customized_pdf)
+ else:
+ print "saving %s" % file_name
+ print "to: %s" % DefaultStorage().path(file_name)
+ DefaultStorage().save(file_name, File(open(pdf.get_filename())))
+
+ def build_mobi(self):
+ """ (Re)builds the MOBI file.
+
+ """
+ from django.core.files import File
+ from catalogue.utils import remove_zip
+
+ mobi = self.wldocument().as_mobi()
+
+ self.mobi_file.save('%s.mobi' % self.fileid(), File(open(mobi.get_filename())))
+
+ # remove zip with all mobi files
+ remove_zip(settings.ALL_MOBI_ZIP)
+
+ def build_epub(self):
+ """(Re)builds the epub file."""
+ from django.core.files import File
+ from catalogue.utils import remove_zip
+
+ epub = self.wldocument().as_epub()
+
+ self.epub_file.save('%s.epub' % self.fileid(),
+ File(open(epub.get_filename())))
+
+ # remove zip package with all epub files
+ remove_zip(settings.ALL_EPUB_ZIP)
def build_txt(self):
- from StringIO import StringIO
from django.core.files.base import ContentFile
- from librarian import text
- out = StringIO()
- text.transform(open(self.xml_file.path), out)
- self.txt_file.save('%s.txt' % self.slug, ContentFile(out.getvalue()))
- self.save()
+ text = self.wldocument().as_text()
+ self.txt_file.save('%s.txt' % self.fileid(), ContentFile(text.get_string()))
+
+
+ def build_html(self):
+ from markupstring import MarkupString
+ from django.core.files.base import ContentFile
+ from slughifi import slughifi
+ from librarian import html
+
+ meta_tags = list(self.tags.filter(
+ category__in=('author', 'epoch', 'genre', 'kind')))
+ book_tag = self.book_tag()
+
+ html_output = self.wldocument(parse_dublincore=False).as_html()
+ if html_output:
+ self.html_file.save('%s.html' % self.fileid(),
+ ContentFile(html_output.get_string()))
+
+ # get ancestor l-tags for adding to new fragments
+ ancestor_tags = []
+ p = self.parent
+ while p:
+ ancestor_tags.append(p.book_tag())
+ p = p.parent
+
+ # Delete old fragments and create them from scratch
+ self.fragments.all().delete()
+ # Extract fragments
+ closed_fragments, open_fragments = html.extract_fragments(self.html_file.path)
+ for fragment in closed_fragments.values():
+ try:
+ theme_names = [s.strip() for s in fragment.themes.split(',')]
+ except AttributeError:
+ continue
+ themes = []
+ for theme_name in theme_names:
+ if not theme_name:
+ continue
+ tag, created = Tag.objects.get_or_create(slug=slughifi(theme_name), category='theme')
+ if created:
+ tag.name = theme_name
+ tag.sort_key = theme_name.lower()
+ tag.save()
+ themes.append(tag)
+ if not themes:
+ continue
+
+ text = fragment.to_string()
+ short_text = ''
+ if (len(MarkupString(text)) > 240):
+ short_text = unicode(MarkupString(text)[:160])
+ new_fragment = Fragment.objects.create(anchor=fragment.id, book=self,
+ text=text, short_text=short_text)
+
+ new_fragment.save()
+ new_fragment.tags = set(meta_tags + themes + [book_tag] + ancestor_tags)
+ self.save()
+ self.html_built.send(sender=self)
+ return True
+ return False
+ @staticmethod
+ def zip_format(format_):
+ def pretty_file_name(book):
+ return "%s/%s.%s" % (
+ b.get_extra_info_value()['author'],
+ b.fileid(),
+ format_)
+
+ field_name = "%s_file" % format_
+ books = Book.objects.filter(parent=None).exclude(**{field_name: ""})
+ paths = [(pretty_file_name(b), getattr(b, field_name).path)
+ for b in books]
+ result = create_zip.delay(paths,
+ getattr(settings, "ALL_%s_ZIP" % format_.upper()))
+ return result.wait()
+
+ def zip_audiobooks(self):
+ bm = BookMedia.objects.filter(book=self, type='mp3')
+ paths = map(lambda bm: (None, bm.file.path), bm)
+ result = create_zip.delay(paths, self.fileid())
+ return result.wait()
@classmethod
def from_xml_file(cls, xml_file, **kwargs):
+ from django.core.files import File
+ from librarian import dcparser
+
# use librarian to parse meta-data
book_info = dcparser.parse(xml_file)
xml_file.close()
@classmethod
- def from_text_and_meta(cls, raw_file, book_info, overwrite=False, build_epub=True, build_txt=True):
+ def from_text_and_meta(cls, raw_file, book_info, overwrite=False,
+ build_epub=True, build_txt=True, build_pdf=True, build_mobi=True):
import re
- from tempfile import NamedTemporaryFile
- from markupstring import MarkupString
- from django.core.files.storage import default_storage
+ from sortify import sortify
# check for parts before we do anything
children = []
if hasattr(book_info, 'parts'):
for part_url in book_info.parts:
- base, slug = part_url.rsplit('/', 1)
try:
- children.append(Book.objects.get(slug=slug))
+ children.append(Book.objects.get(
+ slug=part_url.slug, language=part_url.language))
except Book.DoesNotExist, e:
- raise Book.DoesNotExist(_('Book with slug = "%s" does not exist.') % slug)
+ raise Book.DoesNotExist(_('Book "%s/%s" does not exist.') %
+ (part_url.slug, part_url.language))
# Read book metadata
- book_base, book_slug = book_info.url.rsplit('/', 1)
+ book_slug = book_info.url.slug
+ language = book_info.language
if re.search(r'[^a-zA-Z0-9-]', book_slug):
raise ValueError('Invalid characters in slug')
- book, created = Book.objects.get_or_create(slug=book_slug)
+ book, created = Book.objects.get_or_create(slug=book_slug, language=language)
if created:
book_shelves = []
else:
if not overwrite:
- raise Book.AlreadyExists(_('Book %s already exists') % book_slug)
+ raise Book.AlreadyExists(_('Book %s/%s already exists') % (
+ book_slug, language))
# Save shelves for this book
book_shelves = list(book.tags.filter(category='set'))
book.title = book_info.title
book.set_extra_info_value(book_info.to_dict())
- book._short_html = ''
book.save()
- book_tags = []
- categories = (('kinds', 'kind'), ('genres', 'genre'), ('authors', 'author'), ('epochs', 'epoch'))
- for field_name, category in categories:
- try:
- tag_names = getattr(book_info, field_name)
- except:
- tag_names = [getattr(book_info, category)]
- for tag_name in tag_names:
- tag_sort_key = tag_name
- if category == 'author':
- tag_sort_key = tag_name.last_name
- tag_name = ' '.join(tag_name.first_names) + ' ' + tag_name.last_name
- tag, created = Tag.objects.get_or_create(slug=slughifi(tag_name), category=category)
- if created:
- tag.name = tag_name
- tag.sort_key = tag_sort_key.lower()
- tag.save()
- book_tags.append(tag)
+ meta_tags = Tag.tags_from_info(book_info)
- book.tags = book_tags + book_shelves
+ book.tags = set(meta_tags + book_shelves)
book_tag = book.book_tag()
# delete old fragments when overwriting
book.fragments.all().delete()
- html_file = NamedTemporaryFile()
- if html.transform(book.xml_file.path, html_file, parse_dublincore=False):
- book.html_file.save('%s.html' % book.slug, File(html_file), save=False)
-
- # get ancestor l-tags for adding to new fragments
- ancestor_tags = []
- p = book.parent
- while p:
- ancestor_tags.append(p.book_tag())
- p = p.parent
-
- # Extract fragments
- closed_fragments, open_fragments = html.extract_fragments(book.html_file.path)
- for fragment in closed_fragments.values():
- try:
- theme_names = [s.strip() for s in fragment.themes.split(',')]
- except AttributeError:
- continue
- themes = []
- for theme_name in theme_names:
- if not theme_name:
- continue
- tag, created = Tag.objects.get_or_create(slug=slughifi(theme_name), category='theme')
- if created:
- tag.name = theme_name
- tag.sort_key = theme_name.lower()
- tag.save()
- themes.append(tag)
- if not themes:
- continue
+ if book.build_html():
+ if not settings.NO_BUILD_TXT and build_txt:
+ book.build_txt()
- text = fragment.to_string()
- short_text = ''
- if (len(MarkupString(text)) > 240):
- short_text = unicode(MarkupString(text)[:160])
- new_fragment, created = Fragment.objects.get_or_create(anchor=fragment.id, book=book,
- defaults={'text': text, 'short_text': short_text})
+ book.build_cover(book_info)
- new_fragment.save()
- new_fragment.tags = set(book_tags + themes + [book_tag] + ancestor_tags)
+ if not settings.NO_BUILD_EPUB and build_epub:
+ book.build_epub()
- if not settings.NO_BUILD_TXT and build_txt:
- book.build_txt()
+ if not settings.NO_BUILD_PDF and build_pdf:
+ book.build_pdf()
- if not settings.NO_BUILD_EPUB and build_epub:
- book.root_ancestor.build_epub()
+ if not settings.NO_BUILD_MOBI and build_mobi:
+ book.build_mobi()
book_descendants = list(book.children.all())
+ descendants_tags = set()
# add l-tag to descendants and their fragments
- # delete unnecessary EPUB files
while len(book_descendants) > 0:
child_book = book_descendants.pop(0)
+ descendants_tags.update(child_book.tags)
child_book.tags = list(child_book.tags) + [book_tag]
child_book.save()
for fragment in child_book.fragments.all():
fragment.tags = set(list(fragment.tags) + [book_tag])
book_descendants += list(child_book.children.all())
+ for tag in descendants_tags:
+ touch_tag.delay(tag)
+
+ book.save()
+
# refresh cache
book.reset_tag_counter()
book.reset_theme_counter()
- book.save()
+ cls.published.send(sender=book)
return book
-
- def refresh_tag_counter(self):
- tags = {}
- for child in self.children.all().order_by():
- for tag_pk, value in child.tag_counter.iteritems():
- tags[tag_pk] = tags.get(tag_pk, 0) + value
- for tag in self.tags.exclude(category__in=('book', 'theme', 'set')).order_by():
- tags[tag.pk] = 1
- self.set__tag_counter_value(tags)
- self.save(reset_short_html=False)
- return tags
-
def reset_tag_counter(self):
- self._tag_counter = None
- self.save(reset_short_html=False)
+ if self.id is None:
+ return
+
+ cache_key = "Book.tag_counter/%d" % self.id
+ cache.delete(cache_key)
if self.parent:
self.parent.reset_tag_counter()
@property
def tag_counter(self):
- if self._tag_counter is None:
- return self.refresh_tag_counter()
- return dict((int(k), v) for k, v in self.get__tag_counter_value().iteritems())
-
- def refresh_theme_counter(self):
- tags = {}
- for fragment in Fragment.tagged.with_any([self.book_tag()]).order_by():
- for tag in fragment.tags.filter(category='theme').order_by():
- tags[tag.pk] = tags.get(tag.pk, 0) + 1
- self.set__theme_counter_value(tags)
- self.save(reset_short_html=False)
+ if self.id:
+ cache_key = "Book.tag_counter/%d" % self.id
+ tags = cache.get(cache_key)
+ else:
+ tags = None
+
+ if tags is None:
+ tags = {}
+ for child in self.children.all().order_by():
+ for tag_pk, value in child.tag_counter.iteritems():
+ tags[tag_pk] = tags.get(tag_pk, 0) + value
+ for tag in self.tags.exclude(category__in=('book', 'theme', 'set')).order_by():
+ tags[tag.pk] = 1
+
+ if self.id:
+ cache.set(cache_key, tags, CACHE_FOREVER)
return tags
def reset_theme_counter(self):
- self._theme_counter = None
- self.save(reset_short_html=False)
+ if self.id is None:
+ return
+
+ cache_key = "Book.theme_counter/%d" % self.id
+ cache.delete(cache_key)
if self.parent:
self.parent.reset_theme_counter()
@property
def theme_counter(self):
- if self._theme_counter is None:
- return self.refresh_theme_counter()
- return dict((int(k), v) for k, v in self.get__theme_counter_value().iteritems())
+ if self.id:
+ cache_key = "Book.theme_counter/%d" % self.id
+ tags = cache.get(cache_key)
+ else:
+ tags = None
+
+ if tags is None:
+ tags = {}
+ for fragment in Fragment.tagged.with_any([self.book_tag()]).order_by():
+ for tag in fragment.tags.filter(category='theme').order_by():
+ tags[tag.pk] = tags.get(tag.pk, 0) + 1
+
+ if self.id:
+ cache.set(cache_key, tags, CACHE_FOREVER)
+ return tags
def pretty_title(self, html_links=False):
book = self
return ', '.join(names)
+ @classmethod
+ def tagged_top_level(cls, tags):
+ """ Returns top-level books tagged with `tags'.
+
+ It only returns those books which don't have ancestors which are
+ also tagged with those tags.
+
+ """
+ # get relevant books and their tags
+ objects = cls.tagged.with_all(tags)
+ # eliminate descendants
+ l_tags = Tag.objects.filter(category='book', slug__in=[book.book_tag_slug() for book in objects])
+ descendants_keys = [book.pk for book in cls.tagged.with_any(l_tags)]
+ if descendants_keys:
+ objects = objects.exclude(pk__in=descendants_keys)
+
+ return objects
+
+ @classmethod
+ def book_list(cls, filter=None):
+ """Generates a hierarchical listing of all books.
+
+ Books are optionally filtered with a test function.
+
+ """
+
+ books_by_parent = {}
+ books = cls.objects.all().order_by('parent_number', 'sort_key').only(
+ 'title', 'parent', 'slug', 'language')
+ if filter:
+ books = books.filter(filter).distinct()
+ book_ids = set((book.pk for book in books))
+ for book in books:
+ parent = book.parent_id
+ if parent not in book_ids:
+ parent = None
+ books_by_parent.setdefault(parent, []).append(book)
+ else:
+ for book in books:
+ books_by_parent.setdefault(book.parent_id, []).append(book)
+
+ orphans = []
+ books_by_author = SortedDict()
+ for tag in Tag.objects.filter(category='author'):
+ books_by_author[tag] = []
+
+ for book in books_by_parent.get(None,()):
+ authors = list(book.tags.filter(category='author'))
+ if authors:
+ for author in authors:
+ books_by_author[author].append(book)
+ else:
+ orphans.append(book)
+
+ return books_by_author, orphans, books_by_parent
+
+ _audiences_pl = {
+ "SP1": (1, u"szkoła podstawowa"),
+ "SP2": (1, u"szkoła podstawowa"),
+ "P": (1, u"szkoła podstawowa"),
+ "G": (2, u"gimnazjum"),
+ "L": (3, u"liceum"),
+ "LP": (3, u"liceum"),
+ }
+ def audiences_pl(self):
+ audiences = self.get_extra_info_value().get('audiences', [])
+ audiences = sorted(set([self._audiences_pl[a] for a in audiences]))
+ return [a[1] for a in audiences]
+
+
+def _has_factory(ftype):
+ has = lambda self: bool(getattr(self, "%s_file" % ftype))
+ has.short_description = t.upper()
+ has.boolean = True
+ has.__name__ = "has_%s_file" % ftype
+ return has
+
+
+# add the file fields
+for t in Book.formats:
+ field_name = "%s_file" % t
+ models.FileField(_("%s file" % t.upper()),
+ upload_to=book_upload_path(t),
+ blank=True).contribute_to_class(Book, field_name)
+
+ setattr(Book, "has_%s_file" % t, _has_factory(t))
+
class Fragment(models.Model):
text = models.TextField()
short_text = models.TextField(editable=False)
- _short_html = models.TextField(editable=False)
anchor = models.CharField(max_length=120)
book = models.ForeignKey(Book, related_name='fragments')
verbose_name_plural = _('fragments')
def get_absolute_url(self):
- return '%s#m%s' % (reverse('book_text', kwargs={'slug': self.book.slug}), self.anchor)
+ return '%s#m%s' % (self.book.get_html_url(), self.anchor)
- def short_html(self):
- key = '_short_html_%s' % get_language()
- short_html = getattr(self, key)
- if short_html and len(short_html):
- return mark_safe(short_html)
- else:
- setattr(self, key, unicode(render_to_string('catalogue/fragment_short.html',
- {'fragment': self})))
- self.save()
- return mark_safe(getattr(self, key))
+ def reset_short_html(self):
+ if self.id is None:
+ return
+ cache_key = "Fragment.short_html/%d/%s"
+ for lang, langname in settings.LANGUAGES:
+ cache.delete(cache_key % (self.id, lang))
-class FileRecord(models.Model):
- slug = models.SlugField(_('slug'), max_length=120, db_index=True)
- type = models.CharField(_('type'), max_length=20, db_index=True)
- sha1 = models.CharField(_('sha-1 hash'), max_length=40)
- time = models.DateTimeField(_('time'), auto_now_add=True)
+ def short_html(self):
+ if self.id:
+ cache_key = "Fragment.short_html/%d/%s" % (self.id, get_language())
+ short_html = cache.get(cache_key)
+ else:
+ short_html = None
- class Meta:
- ordering = ('-time','-slug', '-type')
- verbose_name = _('file record')
- verbose_name_plural = _('file records')
+ if short_html is not None:
+ return mark_safe(short_html)
+ else:
+ short_html = unicode(render_to_string('catalogue/fragment_short.html',
+ {'fragment': self}))
+ if self.id:
+ cache.set(cache_key, short_html, CACHE_FOREVER)
+ return mark_safe(short_html)
- def __unicode__(self):
- return "%s %s.%s" % (self.sha1, self.slug, self.type)
###########
#
def _tags_updated_handler(sender, affected_tags, **kwargs):
# reset tag global counter
- Tag.objects.filter(pk__in=[tag.pk for tag in affected_tags]).update(book_count=None)
+ # we want Tag.changed_at updated for API to know the tag was touched
+ for tag in affected_tags:
+ touch_tag.delay(tag)
# if book tags changed, reset book tag counter
if isinstance(sender, Book) and \
tags_updated.connect(_tags_updated_handler)
-def _m2m_changed_handler(sender, instance, action, reverse, pk_set, **kwargs):
- """ refresh all the short_html stuff on BookMedia delete """
- if sender == Book.medias.through and reverse and action == 'pre_clear':
- for book in instance.book_set.all():
- book.save()
-m2m_changed.connect(_m2m_changed_handler)
-
def _pre_delete_handler(sender, instance, **kwargs):
- """ explicitly clear m2m, so that Books can be refreshed """
+ """ refresh Book on BookMedia delete """
if sender == BookMedia:
- instance.book_set.clear()
+ instance.book.save()
pre_delete.connect(_pre_delete_handler)
def _post_save_handler(sender, instance, **kwargs):
""" refresh all the short_html stuff on BookMedia update """
if sender == BookMedia:
- for book in instance.book_set.all():
- book.save()
+ instance.book.save()
post_save.connect(_post_save_handler)
-
fnp / wolnelektury.git / blobdiff